Paper Abstract and Keywords |
Presentation |
2013-11-18 00:00
[Poster Presentation]
Designing GHz-clock operating balanced single photon detector and evaluation Hirofumi Hashimoto, Akihisa Tomita, Atsushi Okamoto (Hokkaido Univ.) |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Because of low power consumption and small footprint, avalanche photo diodes (APD) have been commonly applied to photon detection. Recently, high speed quantum communication has been demonstrated for high bit-rate quantum key distribution. For the high speed quantum communication, photon detectors should operate at GHz-clock frequencies. The GHz-clock operation of an InGaAs-APD photon detector has been demonstrated with sinusoidal wave gating. The sinusoidal wave appearing in the output is removed by sharp band-rejection filters. However, the use of filters limits the operating frequency. Moreover, filter design is difficult to realize sharp rejection with a small volume filter. And balanced single photon detector using two APDs operated low noise high detection efficiencies. However balanced single photon detectors were operated only MHz-clock frequencies, and it is not clear whether detectors operate GHz-clock frequencies. We report balanced single photon detector operated GHz-clock. This circuit removes the filter which limits the operating frequency. We demonstrated operating 1.060GHz frequencies using NR8300FP-C.C, and confirmed the residual amplitude is less than 30mV nad avalanche signal is more than 100mV. Therefore, this circuit can be obtained good suppression of the spikes. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Single photon detector / InGaAs-APD / GHz-clock frequencies / / / / / |
Reference Info. |
IEICE Tech. Rep. |
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Conference Information |
Committee |
QIT |
Conference Date |
2013-11-18 - 2013-11-19 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Waseda Univ. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Quantum Information |
Paper Information |
Registration To |
QIT |
Conference Code |
2013-11-QIT |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
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(See Japanese page) |
Title (in English) |
Designing GHz-clock operating balanced single photon detector and evaluation |
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Single photon detector |
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InGaAs-APD |
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GHz-clock frequencies |
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1st Author's Name |
Hirofumi Hashimoto |
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Hokkaido University (Hokkaido Univ.) |
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Akihisa Tomita |
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Hokkaido University (Hokkaido Univ.) |
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Atsushi Okamoto |
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Hokkaido University (Hokkaido Univ.) |
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Date Time |
2013-11-18 00:00:00 |
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QIT |
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